Update articles/container-apps/networking.md

Author: Catherine Bundy

articles/container-apps/networking.md

@@ -168,7 +168,7 @@ IP addresses are broken down into the following types:
 | Type | Description |
 |--|--|
 | Public inbound IP address | Used for app traffic in an external deployment, and management traffic in both internal and external deployments. |
-| Outbound public IP | Used as the "from" IP for outbound connections that leave the virtual network. These connections aren't routed down a VPN. Using a NAT gateway or other proxy for outbound traffic from a Container App environment isn't supported. |
+| Outbound public IP | Used as the "from" IP for outbound connections that leave the virtual network. These connections aren't routed down a VPN. Using a NAT gateway or other proxy for outbound traffic from a Container App environment isn't supported.  Outbound IPs are not guaranteed and may change over time. |
 | Internal load balancer IP address | This address only exists in an internal deployment. |
 | App-assigned IP-based TLS/SSL addresses | These addresses are only possible with an external deployment, and when IP-based TLS/SSL binding is configured. |